… | |
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6 | #include <string.h> |
6 | #include <string.h> |
7 | #include <stdlib.h> |
7 | #include <stdlib.h> |
8 | #include <stdio.h> |
8 | #include <stdio.h> |
9 | #include <limits.h> |
9 | #include <limits.h> |
10 | #include <float.h> |
10 | #include <float.h> |
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11 | #include <inttypes.h> |
11 | |
12 | |
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13 | #define ECB_NO_THREADS 1 |
12 | #include "ecb.h" |
14 | #include "ecb.h" |
13 | |
15 | |
14 | // compatibility with perl <5.18 |
16 | // compatibility with perl <5.18 |
15 | #ifndef HvNAMELEN_get |
17 | #ifndef HvNAMELEN_get |
16 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
18 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
… | |
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23 | #endif |
25 | #endif |
24 | #ifndef SvREFCNT_dec_NN |
26 | #ifndef SvREFCNT_dec_NN |
25 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
27 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
26 | #endif |
28 | #endif |
27 | |
29 | |
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30 | // known major and minor types |
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31 | enum cbor_type |
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32 | { |
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33 | MAJOR_SHIFT = 5, |
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34 | MINOR_MASK = 0x1f, |
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35 | |
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36 | MAJOR_POS_INT = 0 << MAJOR_SHIFT, |
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37 | MAJOR_NEG_INT = 1 << MAJOR_SHIFT, |
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38 | MAJOR_BYTES = 2 << MAJOR_SHIFT, |
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39 | MAJOR_TEXT = 3 << MAJOR_SHIFT, |
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40 | MAJOR_ARRAY = 4 << MAJOR_SHIFT, |
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41 | MAJOR_MAP = 5 << MAJOR_SHIFT, |
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42 | MAJOR_TAG = 6 << MAJOR_SHIFT, |
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43 | MAJOR_MISC = 7 << MAJOR_SHIFT, |
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44 | |
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45 | // INT/STRING/ARRAY/MAP subtypes |
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46 | LENGTH_EXT1 = 24, |
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47 | LENGTH_EXT2 = 25, |
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48 | LENGTH_EXT4 = 26, |
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49 | LENGTH_EXT8 = 27, |
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50 | |
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51 | // SIMPLE types (effectively MISC subtypes) |
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52 | SIMPLE_FALSE = 20, |
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53 | SIMPLE_TRUE = 21, |
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54 | SIMPLE_NULL = 22, |
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55 | SIMPLE_UNDEF = 23, |
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56 | |
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57 | // MISC subtype (unused) |
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58 | MISC_EXT1 = 24, |
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59 | MISC_FLOAT16 = 25, |
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60 | MISC_FLOAT32 = 26, |
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61 | MISC_FLOAT64 = 27, |
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62 | |
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63 | // BYTES/TEXT/ARRAY/MAP |
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64 | MINOR_INDEF = 31, |
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65 | }; |
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66 | |
28 | // known tags |
67 | // known tags |
29 | enum cbor_tag |
68 | enum cbor_tag |
30 | { |
69 | { |
31 | // extensions |
70 | // extensions |
32 | CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
71 | CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
33 | CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
72 | CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
34 | CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
73 | CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
35 | CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
74 | CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
36 | CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
75 | CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
37 | CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
76 | CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
38 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
77 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
39 | |
78 | |
40 | // rfc7049 |
79 | // rfc7049 |
41 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
80 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
42 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
81 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
43 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
82 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
44 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
83 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
45 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
84 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
46 | CBOR_TAG_BIGFLOAT = 5, // array |
85 | CBOR_TAG_BIGFLOAT = 5, // array |
47 | |
86 | |
48 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
87 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
49 | CBOR_TAG_CONV_B64 = 22, // base64, any |
88 | CBOR_TAG_CONV_B64 = 22, // base64, any |
50 | CBOR_TAG_CONV_HEX = 23, // base16, any |
89 | CBOR_TAG_CONV_HEX = 23, // base16, any |
51 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
90 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
52 | |
91 | |
53 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
92 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
54 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
93 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
55 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
94 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
56 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
95 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
57 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
96 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
58 | |
97 | |
59 | CBOR_TAG_MAGIC = 55799 // self-describe cbor |
98 | CBOR_TAG_MAGIC = 55799, // self-describe cbor |
60 | }; |
99 | }; |
61 | |
100 | |
62 | #define F_SHRINK 0x00000001UL |
101 | #define F_SHRINK 0x00000001UL |
63 | #define F_ALLOW_UNKNOWN 0x00000002UL |
102 | #define F_ALLOW_UNKNOWN 0x00000002UL |
64 | #define F_ALLOW_SHARING 0x00000004UL //TODO |
103 | #define F_ALLOW_SHARING 0x00000004UL |
65 | #define F_ALLOW_STRINGREF 0x00000008UL //TODO |
104 | #define F_ALLOW_CYCLES 0x00000008UL |
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105 | #define F_FORBID_OBJECTS 0x00000010UL |
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106 | #define F_PACK_STRINGS 0x00000020UL |
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107 | #define F_TEXT_KEYS 0x00000040UL |
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108 | #define F_TEXT_STRINGS 0x00000080UL |
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109 | #define F_VALIDATE_UTF8 0x00000100UL |
66 | |
110 | |
67 | #define INIT_SIZE 32 // initial scalar size to be allocated |
111 | #define INIT_SIZE 32 // initial scalar size to be allocated |
68 | |
112 | |
69 | #define SB do { |
113 | #define SB do { |
70 | #define SE } while (0) |
114 | #define SE } while (0) |
… | |
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89 | typedef struct { |
133 | typedef struct { |
90 | U32 flags; |
134 | U32 flags; |
91 | U32 max_depth; |
135 | U32 max_depth; |
92 | STRLEN max_size; |
136 | STRLEN max_size; |
93 | SV *filter; |
137 | SV *filter; |
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138 | |
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139 | // for the incremental parser |
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140 | STRLEN incr_pos; // the current offset into the text |
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141 | STRLEN incr_need; // minimum bytes needed to decode |
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142 | AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
94 | } CBOR; |
143 | } CBOR; |
95 | |
144 | |
96 | ecb_inline void |
145 | ecb_inline void |
97 | cbor_init (CBOR *cbor) |
146 | cbor_init (CBOR *cbor) |
98 | { |
147 | { |
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102 | |
151 | |
103 | ecb_inline void |
152 | ecb_inline void |
104 | cbor_free (CBOR *cbor) |
153 | cbor_free (CBOR *cbor) |
105 | { |
154 | { |
106 | SvREFCNT_dec (cbor->filter); |
155 | SvREFCNT_dec (cbor->filter); |
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156 | SvREFCNT_dec (cbor->incr_count); |
107 | } |
157 | } |
108 | |
158 | |
109 | ///////////////////////////////////////////////////////////////////////////// |
159 | ///////////////////////////////////////////////////////////////////////////// |
110 | // utility functions |
160 | // utility functions |
111 | |
161 | |
… | |
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137 | |
187 | |
138 | // minimum length of a string to be registered for stringref |
188 | // minimum length of a string to be registered for stringref |
139 | ecb_inline int |
189 | ecb_inline int |
140 | minimum_string_length (UV idx) |
190 | minimum_string_length (UV idx) |
141 | { |
191 | { |
142 | return idx > 23 |
192 | return idx <= 23 ? 3 |
143 | ? idx > 0xffU |
193 | : idx <= 0xffU ? 4 |
144 | ? idx > 0xffffU |
194 | : idx <= 0xffffU ? 5 |
145 | ? idx > 0xffffffffU |
195 | : idx <= 0xffffffffU ? 7 |
146 | ? 11 |
196 | : 11; |
147 | : 7 |
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148 | : 5 |
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149 | : 4 |
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150 | : 3; |
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151 | } |
197 | } |
152 | |
198 | |
153 | ///////////////////////////////////////////////////////////////////////////// |
199 | ///////////////////////////////////////////////////////////////////////////// |
154 | // encoder |
200 | // encoder |
155 | |
201 | |
… | |
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168 | } enc_t; |
214 | } enc_t; |
169 | |
215 | |
170 | ecb_inline void |
216 | ecb_inline void |
171 | need (enc_t *enc, STRLEN len) |
217 | need (enc_t *enc, STRLEN len) |
172 | { |
218 | { |
173 | if (ecb_expect_false (enc->cur + len >= enc->end)) |
219 | if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len)) |
174 | { |
220 | { |
175 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
221 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
176 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
222 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
177 | enc->cur = SvPVX (enc->sv) + cur; |
223 | enc->cur = SvPVX (enc->sv) + cur; |
178 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
224 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
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189 | static void |
235 | static void |
190 | encode_uint (enc_t *enc, int major, UV len) |
236 | encode_uint (enc_t *enc, int major, UV len) |
191 | { |
237 | { |
192 | need (enc, 9); |
238 | need (enc, 9); |
193 | |
239 | |
194 | if (len < 24) |
240 | if (ecb_expect_true (len < LENGTH_EXT1)) |
195 | *enc->cur++ = major | len; |
241 | *enc->cur++ = major | len; |
196 | else if (len <= 0xff) |
242 | else if (ecb_expect_true (len <= 0xffU)) |
197 | { |
243 | { |
198 | *enc->cur++ = major | 24; |
244 | *enc->cur++ = major | LENGTH_EXT1; |
199 | *enc->cur++ = len; |
245 | *enc->cur++ = len; |
200 | } |
246 | } |
201 | else if (len <= 0xffff) |
247 | else if (len <= 0xffffU) |
202 | { |
248 | { |
203 | *enc->cur++ = major | 25; |
249 | *enc->cur++ = major | LENGTH_EXT2; |
204 | *enc->cur++ = len >> 8; |
250 | *enc->cur++ = len >> 8; |
205 | *enc->cur++ = len; |
251 | *enc->cur++ = len; |
206 | } |
252 | } |
207 | else if (len <= 0xffffffff) |
253 | else if (len <= 0xffffffffU) |
208 | { |
254 | { |
209 | *enc->cur++ = major | 26; |
255 | *enc->cur++ = major | LENGTH_EXT4; |
210 | *enc->cur++ = len >> 24; |
256 | *enc->cur++ = len >> 24; |
211 | *enc->cur++ = len >> 16; |
257 | *enc->cur++ = len >> 16; |
212 | *enc->cur++ = len >> 8; |
258 | *enc->cur++ = len >> 8; |
213 | *enc->cur++ = len; |
259 | *enc->cur++ = len; |
214 | } |
260 | } |
215 | else |
261 | else |
216 | { |
262 | { |
217 | *enc->cur++ = major | 27; |
263 | *enc->cur++ = major | LENGTH_EXT8; |
218 | *enc->cur++ = len >> 56; |
264 | *enc->cur++ = len >> 56; |
219 | *enc->cur++ = len >> 48; |
265 | *enc->cur++ = len >> 48; |
220 | *enc->cur++ = len >> 40; |
266 | *enc->cur++ = len >> 40; |
221 | *enc->cur++ = len >> 32; |
267 | *enc->cur++ = len >> 32; |
222 | *enc->cur++ = len >> 24; |
268 | *enc->cur++ = len >> 24; |
… | |
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227 | } |
273 | } |
228 | |
274 | |
229 | ecb_inline void |
275 | ecb_inline void |
230 | encode_tag (enc_t *enc, UV tag) |
276 | encode_tag (enc_t *enc, UV tag) |
231 | { |
277 | { |
232 | encode_uint (enc, 0xc0, tag); |
278 | encode_uint (enc, MAJOR_TAG, tag); |
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279 | } |
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280 | |
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281 | // exceptional (hopefully) slow path for byte strings that need to be utf8-encoded |
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282 | ecb_noinline static void |
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283 | encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len) |
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284 | { |
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285 | STRLEN ulen = len; |
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286 | U8 *p, *pend = (U8 *)str + len; |
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287 | |
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288 | for (p = (U8 *)str; p < pend; ++p) |
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289 | ulen += *p >> 7; // count set high bits |
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290 | |
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291 | encode_uint (enc, MAJOR_TEXT, ulen); |
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292 | |
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293 | need (enc, ulen); |
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294 | for (p = (U8 *)str; p < pend; ++p) |
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295 | if (*p < 0x80) |
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296 | *enc->cur++ = *p; |
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297 | else |
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298 | { |
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299 | *enc->cur++ = 0xc0 + (*p >> 6); |
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300 | *enc->cur++ = 0x80 + (*p & 63); |
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301 | } |
233 | } |
302 | } |
234 | |
303 | |
235 | ecb_inline void |
304 | ecb_inline void |
236 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
305 | encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
237 | { |
306 | { |
238 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
307 | if (ecb_expect_false (upgrade_utf8)) |
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308 | if (!utf8) |
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309 | { |
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310 | encode_str_utf8 (enc, utf8, str, len); |
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311 | return; |
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312 | } |
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313 | |
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314 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
239 | need (enc, len); |
315 | need (enc, len); |
240 | memcpy (enc->cur, str, len); |
316 | memcpy (enc->cur, str, len); |
241 | enc->cur += len; |
317 | enc->cur += len; |
242 | } |
318 | } |
243 | |
319 | |
244 | static void |
320 | ecb_inline void |
245 | encode_strref (enc_t *enc, int utf8, char *str, STRLEN len) |
321 | encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
246 | { |
322 | { |
247 | if (ecb_expect_false (enc->cbor.flags & F_ALLOW_STRINGREF)) |
323 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
248 | { |
324 | { |
249 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
325 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
250 | |
326 | |
251 | if (SvOK (*svp)) |
327 | if (SvOK (*svp)) |
252 | { |
328 | { |
253 | // already registered, use stringref |
329 | // already registered, use stringref |
254 | encode_tag (enc, CBOR_TAG_STRINGREF); |
330 | encode_tag (enc, CBOR_TAG_STRINGREF); |
255 | encode_uint (enc, 0x00, SvUV (*svp)); |
331 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
256 | return; |
332 | return; |
257 | } |
333 | } |
258 | else if (len >= minimum_string_length (enc->stringref_idx)) |
334 | else if (len >= minimum_string_length (enc->stringref_idx)) |
259 | { |
335 | { |
260 | // register only |
336 | // register only |
261 | sv_setuv (*svp, enc->stringref_idx); |
337 | sv_setuv (*svp, enc->stringref_idx); |
262 | ++enc->stringref_idx; |
338 | ++enc->stringref_idx; |
263 | } |
339 | } |
264 | } |
340 | } |
265 | |
341 | |
266 | encode_str (enc, utf8, str, len); |
342 | encode_str (enc, upgrade_utf8, utf8, str, len); |
267 | } |
343 | } |
268 | |
344 | |
269 | static void encode_sv (enc_t *enc, SV *sv); |
345 | static void encode_sv (enc_t *enc, SV *sv); |
270 | |
346 | |
271 | static void |
347 | static void |
… | |
… | |
276 | if (enc->depth >= enc->cbor.max_depth) |
352 | if (enc->depth >= enc->cbor.max_depth) |
277 | croak (ERR_NESTING_EXCEEDED); |
353 | croak (ERR_NESTING_EXCEEDED); |
278 | |
354 | |
279 | ++enc->depth; |
355 | ++enc->depth; |
280 | |
356 | |
281 | encode_uint (enc, 0x80, len + 1); |
357 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
282 | |
358 | |
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359 | if (SvMAGICAL (av)) |
283 | for (i = 0; i <= len; ++i) |
360 | for (i = 0; i <= len; ++i) |
284 | { |
361 | { |
285 | SV **svp = av_fetch (av, i, 0); |
362 | SV **svp = av_fetch (av, i, 0); |
286 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
363 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
287 | } |
364 | } |
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365 | else |
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366 | for (i = 0; i <= len; ++i) |
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367 | { |
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368 | SV *sv = AvARRAY (av)[i]; |
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369 | encode_sv (enc, sv ? sv : &PL_sv_undef); |
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370 | } |
288 | |
371 | |
289 | --enc->depth; |
372 | --enc->depth; |
290 | } |
373 | } |
291 | |
374 | |
292 | static void |
375 | static void |
… | |
… | |
301 | |
384 | |
302 | int pairs = hv_iterinit (hv); |
385 | int pairs = hv_iterinit (hv); |
303 | int mg = SvMAGICAL (hv); |
386 | int mg = SvMAGICAL (hv); |
304 | |
387 | |
305 | if (mg) |
388 | if (mg) |
306 | encode_ch (enc, 0xa0 | 31); |
389 | encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
307 | else |
390 | else |
308 | encode_uint (enc, 0xa0, pairs); |
391 | encode_uint (enc, MAJOR_MAP, pairs); |
309 | |
392 | |
310 | while ((he = hv_iternext (hv))) |
393 | while ((he = hv_iternext (hv))) |
311 | { |
394 | { |
312 | if (HeKLEN (he) == HEf_SVKEY) |
395 | if (HeKLEN (he) == HEf_SVKEY) |
313 | encode_sv (enc, HeSVKEY (he)); |
396 | encode_sv (enc, HeSVKEY (he)); |
314 | else |
397 | else |
315 | encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
398 | encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
316 | |
399 | |
317 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
400 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
318 | } |
401 | } |
319 | |
402 | |
320 | if (mg) |
403 | if (mg) |
321 | encode_ch (enc, 0xe0 | 31); |
404 | encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
322 | |
405 | |
323 | --enc->depth; |
406 | --enc->depth; |
324 | } |
407 | } |
325 | |
408 | |
326 | // encode objects, arrays and special \0=false and \1=true values. |
409 | // encode objects, arrays and special \0=false and \1=true values. |
327 | static void |
410 | static void |
328 | encode_rv (enc_t *enc, SV *sv) |
411 | encode_rv (enc_t *enc, SV *sv) |
329 | { |
412 | { |
330 | SvGETMAGIC (sv); |
413 | SvGETMAGIC (sv); |
331 | |
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332 | if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING) |
|
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333 | && ecb_expect_false (SvREFCNT (sv) > 1)) |
|
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334 | { |
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335 | if (!enc->shareable) |
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336 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
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337 | |
|
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338 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
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339 | |
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340 | if (SvOK (*svp)) |
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341 | { |
|
|
342 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
|
|
343 | encode_uint (enc, 0x00, SvUV (*svp)); |
|
|
344 | return; |
|
|
345 | } |
|
|
346 | else |
|
|
347 | { |
|
|
348 | sv_setuv (*svp, enc->shareable_idx); |
|
|
349 | ++enc->shareable_idx; |
|
|
350 | encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
|
|
351 | } |
|
|
352 | } |
|
|
353 | |
414 | |
354 | svtype svt = SvTYPE (sv); |
415 | svtype svt = SvTYPE (sv); |
355 | |
416 | |
356 | if (ecb_expect_false (SvOBJECT (sv))) |
417 | if (ecb_expect_false (SvOBJECT (sv))) |
357 | { |
418 | { |
… | |
… | |
364 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
425 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
365 | ? cbor_tagged_stash |
426 | ? cbor_tagged_stash |
366 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
427 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
367 | |
428 | |
368 | HV *stash = SvSTASH (sv); |
429 | HV *stash = SvSTASH (sv); |
369 | GV *method; |
|
|
370 | |
430 | |
371 | if (stash == boolean_stash) |
431 | if (stash == boolean_stash) |
372 | encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); |
432 | { |
|
|
433 | encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); |
|
|
434 | return; |
|
|
435 | } |
373 | else if (stash == error_stash) |
436 | else if (stash == error_stash) |
374 | encode_ch (enc, 0xe0 | 23); |
437 | { |
|
|
438 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
|
|
439 | return; |
|
|
440 | } |
375 | else if (stash == tagged_stash) |
441 | else if (stash == tagged_stash) |
376 | { |
442 | { |
377 | if (svt != SVt_PVAV) |
443 | if (svt != SVt_PVAV) |
378 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
444 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
379 | |
445 | |
380 | encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
446 | encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
381 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
447 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
|
|
448 | |
|
|
449 | return; |
|
|
450 | } |
|
|
451 | } |
|
|
452 | |
|
|
453 | if (ecb_expect_false (SvREFCNT (sv) > 1) |
|
|
454 | && ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) |
|
|
455 | { |
|
|
456 | if (!enc->shareable) |
|
|
457 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
458 | |
|
|
459 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
|
|
460 | |
|
|
461 | if (SvOK (*svp)) |
382 | } |
462 | { |
|
|
463 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
|
|
464 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
|
|
465 | return; |
|
|
466 | } |
|
|
467 | else |
|
|
468 | { |
|
|
469 | sv_setuv (*svp, enc->shareable_idx); |
|
|
470 | ++enc->shareable_idx; |
|
|
471 | encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
|
|
472 | } |
|
|
473 | } |
|
|
474 | |
|
|
475 | if (ecb_expect_false (SvOBJECT (sv))) |
|
|
476 | { |
|
|
477 | HV *stash = SvSTASH (sv); |
|
|
478 | GV *method; |
|
|
479 | |
|
|
480 | if (enc->cbor.flags & F_FORBID_OBJECTS) |
|
|
481 | croak ("encountered object '%s', but forbid_objects is enabled", |
|
|
482 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
383 | else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
483 | else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
384 | { |
484 | { |
385 | dSP; |
485 | dSP; |
386 | |
486 | |
387 | ENTER; SAVETMPS; PUSHMARK (SP); |
487 | ENTER; SAVETMPS; |
|
|
488 | PUSHMARK (SP); |
388 | // we re-bless the reference to get overload and other niceties right |
489 | // we re-bless the reference to get overload and other niceties right |
389 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
490 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
390 | |
491 | |
391 | PUTBACK; |
492 | PUTBACK; |
392 | // G_SCALAR ensures that return value is 1 |
493 | // G_SCALAR ensures that return value is 1 |
… | |
… | |
405 | } |
506 | } |
406 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
507 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
407 | { |
508 | { |
408 | dSP; |
509 | dSP; |
409 | |
510 | |
410 | ENTER; SAVETMPS; PUSHMARK (SP); |
511 | ENTER; SAVETMPS; |
|
|
512 | SAVESTACK_POS (); |
|
|
513 | PUSHMARK (SP); |
411 | EXTEND (SP, 2); |
514 | EXTEND (SP, 2); |
412 | // we re-bless the reference to get overload and other niceties right |
515 | // we re-bless the reference to get overload and other niceties right |
413 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
516 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
414 | PUSHs (sv_cbor); |
517 | PUSHs (sv_cbor); |
415 | |
518 | |
… | |
… | |
420 | // catch this surprisingly common error |
523 | // catch this surprisingly common error |
421 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
524 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
422 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
525 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
423 | |
526 | |
424 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
527 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
425 | encode_uint (enc, 0x80, count + 1); |
528 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
426 | encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
529 | encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
427 | |
530 | |
428 | while (count) |
531 | while (count) |
429 | encode_sv (enc, SP[1 - count--]); |
532 | encode_sv (enc, SP[1 - count--]); |
430 | |
533 | |
431 | PUTBACK; |
534 | PUTBACK; |
… | |
… | |
452 | { |
555 | { |
453 | double nv = SvNVX (sv); |
556 | double nv = SvNVX (sv); |
454 | |
557 | |
455 | need (enc, 9); |
558 | need (enc, 9); |
456 | |
559 | |
457 | if (ecb_expect_false (nv == (U32)nv)) |
560 | if (ecb_expect_false (nv == (NV)(U32)nv)) |
458 | encode_uint (enc, 0x00, (U32)nv); |
561 | encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
459 | //TODO: maybe I32? |
562 | //TODO: maybe I32? |
460 | else if (ecb_expect_false (nv == (float)nv)) |
563 | else if (ecb_expect_false (nv == (float)nv)) |
461 | { |
564 | { |
462 | uint32_t fp = ecb_float_to_binary32 (nv); |
565 | uint32_t fp = ecb_float_to_binary32 (nv); |
463 | |
566 | |
464 | *enc->cur++ = 0xe0 | 26; |
567 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
465 | |
568 | |
466 | if (!ecb_big_endian ()) |
569 | if (!ecb_big_endian ()) |
467 | fp = ecb_bswap32 (fp); |
570 | fp = ecb_bswap32 (fp); |
468 | |
571 | |
469 | memcpy (enc->cur, &fp, 4); |
572 | memcpy (enc->cur, &fp, 4); |
… | |
… | |
471 | } |
574 | } |
472 | else |
575 | else |
473 | { |
576 | { |
474 | uint64_t fp = ecb_double_to_binary64 (nv); |
577 | uint64_t fp = ecb_double_to_binary64 (nv); |
475 | |
578 | |
476 | *enc->cur++ = 0xe0 | 27; |
579 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
477 | |
580 | |
478 | if (!ecb_big_endian ()) |
581 | if (!ecb_big_endian ()) |
479 | fp = ecb_bswap64 (fp); |
582 | fp = ecb_bswap64 (fp); |
480 | |
583 | |
481 | memcpy (enc->cur, &fp, 8); |
584 | memcpy (enc->cur, &fp, 8); |
… | |
… | |
490 | |
593 | |
491 | if (SvPOKp (sv)) |
594 | if (SvPOKp (sv)) |
492 | { |
595 | { |
493 | STRLEN len; |
596 | STRLEN len; |
494 | char *str = SvPV (sv, len); |
597 | char *str = SvPV (sv, len); |
495 | encode_strref (enc, SvUTF8 (sv), str, len); |
598 | encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
496 | } |
599 | } |
497 | else if (SvNOKp (sv)) |
600 | else if (SvNOKp (sv)) |
498 | encode_nv (enc, sv); |
601 | encode_nv (enc, sv); |
499 | else if (SvIOKp (sv)) |
602 | else if (SvIOKp (sv)) |
500 | { |
603 | { |
501 | if (SvIsUV (sv)) |
604 | if (SvIsUV (sv)) |
502 | encode_uint (enc, 0x00, SvUVX (sv)); |
605 | encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
503 | else if (SvIVX (sv) >= 0) |
606 | else if (SvIVX (sv) >= 0) |
504 | encode_uint (enc, 0x00, SvIVX (sv)); |
607 | encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
505 | else |
608 | else |
506 | encode_uint (enc, 0x20, -(SvIVX (sv) + 1)); |
609 | encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
507 | } |
610 | } |
508 | else if (SvROK (sv)) |
611 | else if (SvROK (sv)) |
509 | encode_rv (enc, SvRV (sv)); |
612 | encode_rv (enc, SvRV (sv)); |
510 | else if (!SvOK (sv)) |
613 | else if (!SvOK (sv)) |
511 | encode_ch (enc, 0xe0 | 22); |
614 | encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
512 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
615 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
513 | encode_ch (enc, 0xe0 | 23); |
616 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
514 | else |
617 | else |
515 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
618 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
516 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
619 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
517 | } |
620 | } |
518 | |
621 | |
519 | static SV * |
622 | static SV * |
520 | encode_cbor (SV *scalar, CBOR *cbor) |
623 | encode_cbor (SV *scalar, CBOR *cbor) |
521 | { |
624 | { |
522 | enc_t enc = { }; |
625 | enc_t enc = { 0 }; |
523 | |
626 | |
524 | enc.cbor = *cbor; |
627 | enc.cbor = *cbor; |
525 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
628 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
526 | enc.cur = SvPVX (enc.sv); |
629 | enc.cur = SvPVX (enc.sv); |
527 | enc.end = SvEND (enc.sv); |
630 | enc.end = SvEND (enc.sv); |
528 | |
631 | |
529 | SvPOK_only (enc.sv); |
632 | SvPOK_only (enc.sv); |
530 | |
633 | |
531 | if (cbor->flags & F_ALLOW_STRINGREF) |
634 | if (cbor->flags & F_PACK_STRINGS) |
532 | { |
635 | { |
533 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
636 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
534 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
637 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
535 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
638 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
536 | } |
639 | } |
… | |
… | |
559 | U32 depth; // recursion depth |
662 | U32 depth; // recursion depth |
560 | U32 maxdepth; // recursion depth limit |
663 | U32 maxdepth; // recursion depth limit |
561 | AV *shareable; |
664 | AV *shareable; |
562 | AV *stringref; |
665 | AV *stringref; |
563 | SV *decode_tagged; |
666 | SV *decode_tagged; |
|
|
667 | SV *err_sv; // optional sv for error, needs to be freed |
564 | } dec_t; |
668 | } dec_t; |
565 | |
669 | |
566 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
670 | // set dec->err to ERRSV |
|
|
671 | ecb_cold static void |
|
|
672 | err_errsv (dec_t *dec) |
|
|
673 | { |
|
|
674 | if (!dec->err) |
|
|
675 | { |
|
|
676 | dec->err_sv = newSVsv (ERRSV); |
567 | |
677 | |
568 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
678 | // chop off the trailing \n |
|
|
679 | SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1); |
|
|
680 | *SvEND (dec->err_sv) = 0; |
569 | |
681 | |
|
|
682 | dec->err = SvPVutf8_nolen (dec->err_sv); |
|
|
683 | } |
|
|
684 | } |
|
|
685 | |
|
|
686 | // the following functions are used to reduce code size and help the compiler to optimise |
|
|
687 | ecb_cold static void |
|
|
688 | err_set (dec_t *dec, const char *reason) |
|
|
689 | { |
|
|
690 | if (!dec->err) |
|
|
691 | dec->err = reason; |
|
|
692 | } |
|
|
693 | |
|
|
694 | ecb_cold static void |
|
|
695 | err_unexpected_end (dec_t *dec) |
|
|
696 | { |
|
|
697 | err_set (dec, "unexpected end of CBOR data"); |
|
|
698 | } |
|
|
699 | |
|
|
700 | ecb_cold static void |
|
|
701 | err_nesting_exceeded (dec_t *dec) |
|
|
702 | { |
|
|
703 | err_set (dec, ERR_NESTING_EXCEEDED); |
|
|
704 | } |
|
|
705 | |
|
|
706 | #define ERR_DO(do) SB do; goto fail; SE |
|
|
707 | #define ERR(reason) ERR_DO (err_set (dec, reason)) |
|
|
708 | #define ERR_ERRSV ERR_DO (err_errsv (dec)) |
|
|
709 | |
|
|
710 | #define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec)) |
|
|
711 | |
570 | #define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED) |
712 | #define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED) |
571 | #define DEC_DEC_DEPTH --dec->depth |
713 | #define DEC_DEC_DEPTH --dec->depth |
572 | |
714 | |
573 | static UV |
715 | static UV |
574 | decode_uint (dec_t *dec) |
716 | decode_uint (dec_t *dec) |
575 | { |
717 | { |
576 | switch (*dec->cur & 31) |
718 | U8 m = *dec->cur & MINOR_MASK; |
577 | { |
719 | ++dec->cur; |
578 | case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: |
|
|
579 | case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15: |
|
|
580 | case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: |
|
|
581 | return *dec->cur++ & 31; |
|
|
582 | |
720 | |
583 | case 24: |
721 | if (ecb_expect_true (m < LENGTH_EXT1)) |
|
|
722 | return m; |
|
|
723 | else if (ecb_expect_true (m == LENGTH_EXT1)) |
|
|
724 | { |
584 | WANT (2); |
725 | WANT (1); |
585 | dec->cur += 2; |
726 | dec->cur += 1; |
586 | return dec->cur[-1]; |
727 | return dec->cur[-1]; |
587 | |
728 | } |
588 | case 25: |
729 | else if (ecb_expect_true (m == LENGTH_EXT2)) |
|
|
730 | { |
589 | WANT (3); |
731 | WANT (2); |
590 | dec->cur += 3; |
732 | dec->cur += 2; |
591 | return (((UV)dec->cur[-2]) << 8) |
733 | return (((UV)dec->cur[-2]) << 8) |
592 | | ((UV)dec->cur[-1]); |
734 | | ((UV)dec->cur[-1]); |
593 | |
735 | } |
594 | case 26: |
736 | else if (ecb_expect_true (m == LENGTH_EXT4)) |
|
|
737 | { |
595 | WANT (5); |
738 | WANT (4); |
596 | dec->cur += 5; |
739 | dec->cur += 4; |
597 | return (((UV)dec->cur[-4]) << 24) |
740 | return (((UV)dec->cur[-4]) << 24) |
598 | | (((UV)dec->cur[-3]) << 16) |
741 | | (((UV)dec->cur[-3]) << 16) |
599 | | (((UV)dec->cur[-2]) << 8) |
742 | | (((UV)dec->cur[-2]) << 8) |
600 | | ((UV)dec->cur[-1]); |
743 | | ((UV)dec->cur[-1]); |
601 | |
744 | } |
602 | case 27: |
745 | else if (ecb_expect_true (m == LENGTH_EXT8)) |
|
|
746 | { |
603 | WANT (9); |
747 | WANT (8); |
604 | dec->cur += 9; |
748 | dec->cur += 8; |
|
|
749 | |
|
|
750 | return |
|
|
751 | #if UVSIZE < 8 |
|
|
752 | 0 |
|
|
753 | #else |
605 | return (((UV)dec->cur[-8]) << 56) |
754 | (((UV)dec->cur[-8]) << 56) |
606 | | (((UV)dec->cur[-7]) << 48) |
755 | | (((UV)dec->cur[-7]) << 48) |
607 | | (((UV)dec->cur[-6]) << 40) |
756 | | (((UV)dec->cur[-6]) << 40) |
608 | | (((UV)dec->cur[-5]) << 32) |
757 | | (((UV)dec->cur[-5]) << 32) |
|
|
758 | #endif |
609 | | (((UV)dec->cur[-4]) << 24) |
759 | | (((UV)dec->cur[-4]) << 24) |
610 | | (((UV)dec->cur[-3]) << 16) |
760 | | (((UV)dec->cur[-3]) << 16) |
611 | | (((UV)dec->cur[-2]) << 8) |
761 | | (((UV)dec->cur[-2]) << 8) |
612 | | ((UV)dec->cur[-1]); |
762 | | ((UV)dec->cur[-1]); |
613 | |
763 | } |
614 | default: |
764 | else |
615 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
765 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
616 | } |
|
|
617 | |
766 | |
618 | fail: |
767 | fail: |
619 | return 0; |
768 | return 0; |
620 | } |
769 | } |
621 | |
770 | |
… | |
… | |
626 | { |
775 | { |
627 | AV *av = newAV (); |
776 | AV *av = newAV (); |
628 | |
777 | |
629 | DEC_INC_DEPTH; |
778 | DEC_INC_DEPTH; |
630 | |
779 | |
631 | if ((*dec->cur & 31) == 31) |
780 | if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
632 | { |
781 | { |
633 | ++dec->cur; |
782 | ++dec->cur; |
634 | |
783 | |
635 | for (;;) |
784 | for (;;) |
636 | { |
785 | { |
637 | WANT (1); |
786 | WANT (1); |
638 | |
787 | |
639 | if (*dec->cur == (0xe0 | 31)) |
788 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
640 | { |
789 | { |
641 | ++dec->cur; |
790 | ++dec->cur; |
642 | break; |
791 | break; |
643 | } |
792 | } |
644 | |
793 | |
645 | av_push (av, decode_sv (dec)); |
794 | av_push (av, decode_sv (dec)); |
646 | } |
795 | } |
647 | } |
796 | } |
648 | else |
797 | else |
649 | { |
798 | { |
650 | int i, len = decode_uint (dec); |
799 | UV i, len = decode_uint (dec); |
651 | |
800 | |
|
|
801 | WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
652 | av_fill (av, len - 1); |
802 | av_fill (av, len - 1); |
653 | |
803 | |
654 | for (i = 0; i < len; ++i) |
804 | for (i = 0; i < len; ++i) |
655 | AvARRAY (av)[i] = decode_sv (dec); |
805 | AvARRAY (av)[i] = decode_sv (dec); |
656 | } |
806 | } |
… | |
… | |
669 | { |
819 | { |
670 | // for speed reasons, we specialcase single-string |
820 | // for speed reasons, we specialcase single-string |
671 | // byte or utf-8 strings as keys, but only when !stringref |
821 | // byte or utf-8 strings as keys, but only when !stringref |
672 | |
822 | |
673 | if (ecb_expect_true (!dec->stringref)) |
823 | if (ecb_expect_true (!dec->stringref)) |
674 | if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27) |
824 | if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
675 | { |
825 | { |
676 | I32 len = decode_uint (dec); |
826 | STRLEN len = decode_uint (dec); |
677 | char *key = (char *)dec->cur; |
827 | char *key = (char *)dec->cur; |
678 | |
828 | |
|
|
829 | WANT (len); |
679 | dec->cur += len; |
830 | dec->cur += len; |
680 | |
831 | |
681 | if (ecb_expect_false (dec->stringref)) |
|
|
682 | av_push (dec->stringref, newSVpvn (key, len)); |
|
|
683 | |
|
|
684 | hv_store (hv, key, len, decode_sv (dec), 0); |
832 | hv_store (hv, key, len, decode_sv (dec), 0); |
685 | |
833 | |
686 | return; |
834 | return; |
687 | } |
835 | } |
688 | else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27) |
836 | else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
689 | { |
837 | { |
690 | I32 len = decode_uint (dec); |
838 | STRLEN len = decode_uint (dec); |
691 | char *key = (char *)dec->cur; |
839 | char *key = (char *)dec->cur; |
692 | |
840 | |
|
|
841 | WANT (len); |
693 | dec->cur += len; |
842 | dec->cur += len; |
694 | |
843 | |
695 | if (ecb_expect_false (dec->stringref)) |
844 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
696 | av_push (dec->stringref, newSVpvn_utf8 (key, len, 1)); |
845 | if (!is_utf8_string (key, len)) |
|
|
846 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
697 | |
847 | |
698 | hv_store (hv, key, -len, decode_sv (dec), 0); |
848 | hv_store (hv, key, -len, decode_sv (dec), 0); |
699 | |
849 | |
700 | return; |
850 | return; |
701 | } |
851 | } |
702 | |
852 | |
703 | SV *k = decode_sv (dec); |
853 | SV *k = decode_sv (dec); |
704 | SV *v = decode_sv (dec); |
854 | SV *v = decode_sv (dec); |
705 | |
855 | |
|
|
856 | // we leak memory if uncaught exceptions are thrown by random magical |
|
|
857 | // methods, and this is hopefully the only place where it can happen, |
|
|
858 | // so if there is a chance of an exception, take the very slow path. |
|
|
859 | // since catching exceptions is "undocumented/internal/forbidden" by |
|
|
860 | // the new p5p powers, we need to call out to a perl function :/ |
|
|
861 | if (ecb_expect_false (SvAMAGIC (k))) |
|
|
862 | { |
|
|
863 | dSP; |
|
|
864 | |
|
|
865 | ENTER; SAVETMPS; |
|
|
866 | PUSHMARK (SP); |
|
|
867 | EXTEND (SP, 3); |
|
|
868 | PUSHs (sv_2mortal (newRV_inc ((SV *)hv))); |
|
|
869 | PUSHs (sv_2mortal (k)); |
|
|
870 | PUSHs (sv_2mortal (v)); |
|
|
871 | |
|
|
872 | PUTBACK; |
|
|
873 | call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL); |
|
|
874 | SPAGAIN; |
|
|
875 | |
|
|
876 | FREETMPS; LEAVE; |
|
|
877 | |
|
|
878 | if (SvTRUE (ERRSV)) |
|
|
879 | ERR_ERRSV; |
|
|
880 | |
|
|
881 | return; |
|
|
882 | } |
|
|
883 | |
706 | hv_store_ent (hv, k, v, 0); |
884 | hv_store_ent (hv, k, v, 0); |
707 | SvREFCNT_dec (k); |
885 | SvREFCNT_dec (k); |
|
|
886 | |
|
|
887 | fail: |
|
|
888 | ; |
708 | } |
889 | } |
709 | |
890 | |
710 | static SV * |
891 | static SV * |
711 | decode_hv (dec_t *dec) |
892 | decode_hv (dec_t *dec) |
712 | { |
893 | { |
713 | HV *hv = newHV (); |
894 | HV *hv = newHV (); |
714 | |
895 | |
715 | DEC_INC_DEPTH; |
896 | DEC_INC_DEPTH; |
716 | |
897 | |
717 | if ((*dec->cur & 31) == 31) |
898 | if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
718 | { |
899 | { |
719 | ++dec->cur; |
900 | ++dec->cur; |
720 | |
901 | |
721 | for (;;) |
902 | for (;;) |
722 | { |
903 | { |
723 | WANT (1); |
904 | WANT (1); |
724 | |
905 | |
725 | if (*dec->cur == (0xe0 | 31)) |
906 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
726 | { |
907 | { |
727 | ++dec->cur; |
908 | ++dec->cur; |
728 | break; |
909 | break; |
729 | } |
910 | } |
730 | |
911 | |
731 | decode_he (dec, hv); |
912 | decode_he (dec, hv); |
732 | } |
913 | } |
733 | } |
914 | } |
734 | else |
915 | else |
735 | { |
916 | { |
736 | int pairs = decode_uint (dec); |
917 | UV pairs = decode_uint (dec); |
|
|
918 | |
|
|
919 | WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes |
737 | |
920 | |
738 | while (pairs--) |
921 | while (pairs--) |
739 | decode_he (dec, hv); |
922 | decode_he (dec, hv); |
740 | } |
923 | } |
741 | |
924 | |
… | |
… | |
751 | static SV * |
934 | static SV * |
752 | decode_str (dec_t *dec, int utf8) |
935 | decode_str (dec_t *dec, int utf8) |
753 | { |
936 | { |
754 | SV *sv = 0; |
937 | SV *sv = 0; |
755 | |
938 | |
756 | if ((*dec->cur & 31) == 31) |
939 | if ((*dec->cur & MINOR_MASK) == MINOR_INDEF) |
757 | { |
940 | { |
|
|
941 | // indefinite length strings |
758 | ++dec->cur; |
942 | ++dec->cur; |
759 | |
943 | |
|
|
944 | U8 major = *dec->cur & MAJOR_MISC; |
|
|
945 | |
760 | sv = newSVpvn ("", 0); |
946 | sv = newSVpvn ("", 0); |
761 | |
947 | |
762 | // not very fast, and certainly not robust against illegal input |
|
|
763 | for (;;) |
948 | for (;;) |
764 | { |
949 | { |
765 | WANT (1); |
950 | WANT (1); |
766 | |
951 | |
767 | if (*dec->cur == (0xe0 | 31)) |
952 | if ((*dec->cur - major) > LENGTH_EXT8) |
|
|
953 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
768 | { |
954 | { |
769 | ++dec->cur; |
955 | ++dec->cur; |
770 | break; |
956 | break; |
771 | } |
957 | } |
|
|
958 | else |
|
|
959 | ERR ("corrupted CBOR data (invalid chunks in indefinite length string)"); |
772 | |
960 | |
773 | sv_catsv (sv, decode_sv (dec)); |
961 | STRLEN len = decode_uint (dec); |
|
|
962 | |
|
|
963 | WANT (len); |
|
|
964 | sv_catpvn (sv, dec->cur, len); |
|
|
965 | dec->cur += len; |
774 | } |
966 | } |
775 | } |
967 | } |
776 | else |
968 | else |
777 | { |
969 | { |
778 | STRLEN len = decode_uint (dec); |
970 | STRLEN len = decode_uint (dec); |
… | |
… | |
785 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
977 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
786 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
978 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
787 | } |
979 | } |
788 | |
980 | |
789 | if (utf8) |
981 | if (utf8) |
|
|
982 | { |
|
|
983 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
984 | if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) |
|
|
985 | ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
|
|
986 | |
790 | SvUTF8_on (sv); |
987 | SvUTF8_on (sv); |
|
|
988 | } |
791 | |
989 | |
792 | return sv; |
990 | return sv; |
793 | |
991 | |
794 | fail: |
992 | fail: |
795 | SvREFCNT_dec (sv); |
993 | SvREFCNT_dec (sv); |
… | |
… | |
814 | sv = newRV_noinc (decode_sv (dec)); |
1012 | sv = newRV_noinc (decode_sv (dec)); |
815 | break; |
1013 | break; |
816 | |
1014 | |
817 | case CBOR_TAG_STRINGREF_NAMESPACE: |
1015 | case CBOR_TAG_STRINGREF_NAMESPACE: |
818 | { |
1016 | { |
|
|
1017 | // do nmot use SAVETMPS/FREETMPS, as these will |
|
|
1018 | // erase mortalised caches, e.g. "shareable" |
819 | ENTER; SAVETMPS; |
1019 | ENTER; |
820 | |
1020 | |
821 | SAVESPTR (dec->stringref); |
1021 | SAVESPTR (dec->stringref); |
822 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
1022 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
823 | |
1023 | |
824 | sv = decode_sv (dec); |
1024 | sv = decode_sv (dec); |
825 | |
1025 | |
826 | FREETMPS; LEAVE; |
1026 | LEAVE; |
827 | } |
1027 | } |
828 | break; |
1028 | break; |
829 | |
1029 | |
830 | case CBOR_TAG_STRINGREF: |
1030 | case CBOR_TAG_STRINGREF: |
831 | { |
1031 | { |
832 | if ((*dec->cur >> 5) != 0) |
1032 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
833 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
1033 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
834 | |
1034 | |
835 | UV idx = decode_uint (dec); |
1035 | UV idx = decode_uint (dec); |
836 | |
1036 | |
837 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
1037 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
… | |
… | |
844 | case CBOR_TAG_VALUE_SHAREABLE: |
1044 | case CBOR_TAG_VALUE_SHAREABLE: |
845 | { |
1045 | { |
846 | if (ecb_expect_false (!dec->shareable)) |
1046 | if (ecb_expect_false (!dec->shareable)) |
847 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
1047 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
848 | |
1048 | |
|
|
1049 | if (dec->cbor.flags & F_ALLOW_CYCLES) |
|
|
1050 | { |
849 | sv = newSV (0); |
1051 | sv = newSV (0); |
850 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
1052 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
851 | |
1053 | |
852 | SV *osv = decode_sv (dec); |
1054 | SV *osv = decode_sv (dec); |
853 | sv_setsv (sv, osv); |
1055 | sv_setsv (sv, osv); |
854 | SvREFCNT_dec_NN (osv); |
1056 | SvREFCNT_dec_NN (osv); |
|
|
1057 | } |
|
|
1058 | else |
|
|
1059 | { |
|
|
1060 | av_push (dec->shareable, &PL_sv_undef); |
|
|
1061 | int idx = AvFILLp (dec->shareable); |
|
|
1062 | sv = decode_sv (dec); |
|
|
1063 | av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
|
|
1064 | } |
855 | } |
1065 | } |
856 | break; |
1066 | break; |
857 | |
1067 | |
858 | case CBOR_TAG_VALUE_SHAREDREF: |
1068 | case CBOR_TAG_VALUE_SHAREDREF: |
859 | { |
1069 | { |
860 | if ((*dec->cur >> 5) != 0) |
1070 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
861 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
1071 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
862 | |
1072 | |
863 | UV idx = decode_uint (dec); |
1073 | UV idx = decode_uint (dec); |
864 | |
1074 | |
865 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
1075 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
866 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
1076 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
867 | |
1077 | |
868 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
1078 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
1079 | |
|
|
1080 | if (sv == &PL_sv_undef) |
|
|
1081 | ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
869 | } |
1082 | } |
870 | break; |
1083 | break; |
871 | |
1084 | |
872 | case CBOR_TAG_PERL_OBJECT: |
1085 | case CBOR_TAG_PERL_OBJECT: |
873 | { |
1086 | { |
|
|
1087 | if (dec->cbor.flags & F_FORBID_OBJECTS) |
|
|
1088 | goto filter; |
|
|
1089 | |
874 | sv = decode_sv (dec); |
1090 | sv = decode_sv (dec); |
875 | |
1091 | |
876 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
1092 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
877 | ERR ("corrupted CBOR data (non-array perl object)"); |
1093 | ERR ("corrupted CBOR data (non-array perl object)"); |
878 | |
1094 | |
… | |
… | |
888 | if (!method) |
1104 | if (!method) |
889 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
1105 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
890 | |
1106 | |
891 | dSP; |
1107 | dSP; |
892 | |
1108 | |
893 | ENTER; SAVETMPS; PUSHMARK (SP); |
1109 | ENTER; SAVETMPS; |
|
|
1110 | PUSHMARK (SP); |
894 | EXTEND (SP, len + 1); |
1111 | EXTEND (SP, len + 1); |
895 | // we re-bless the reference to get overload and other niceties right |
1112 | // we re-bless the reference to get overload and other niceties right |
896 | PUSHs (*av_fetch (av, 0, 1)); |
1113 | PUSHs (*av_fetch (av, 0, 1)); |
897 | PUSHs (sv_cbor); |
1114 | PUSHs (sv_cbor); |
898 | |
1115 | |
… | |
… | |
906 | SPAGAIN; |
1123 | SPAGAIN; |
907 | |
1124 | |
908 | if (SvTRUE (ERRSV)) |
1125 | if (SvTRUE (ERRSV)) |
909 | { |
1126 | { |
910 | FREETMPS; LEAVE; |
1127 | FREETMPS; LEAVE; |
911 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
1128 | ERR_ERRSV; |
912 | } |
1129 | } |
913 | |
1130 | |
914 | SvREFCNT_dec (sv); |
1131 | SvREFCNT_dec (sv); |
915 | sv = SvREFCNT_inc (POPs); |
1132 | sv = SvREFCNT_inc (POPs); |
916 | |
1133 | |
… | |
… | |
919 | FREETMPS; LEAVE; |
1136 | FREETMPS; LEAVE; |
920 | } |
1137 | } |
921 | break; |
1138 | break; |
922 | |
1139 | |
923 | default: |
1140 | default: |
|
|
1141 | filter: |
924 | { |
1142 | { |
|
|
1143 | SV *tag_sv = newSVuv (tag); |
|
|
1144 | |
925 | sv = decode_sv (dec); |
1145 | sv = decode_sv (dec); |
926 | |
1146 | |
927 | dSP; |
1147 | dSP; |
928 | ENTER; SAVETMPS; PUSHMARK (SP); |
1148 | ENTER; SAVETMPS; |
|
|
1149 | SAVESTACK_POS (); |
|
|
1150 | PUSHMARK (SP); |
929 | EXTEND (SP, 2); |
1151 | EXTEND (SP, 2); |
930 | PUSHs (newSVuv (tag)); |
1152 | PUSHs (tag_sv); |
931 | PUSHs (sv); |
1153 | PUSHs (sv); |
932 | |
1154 | |
933 | PUTBACK; |
1155 | PUTBACK; |
934 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
1156 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
935 | SPAGAIN; |
1157 | SPAGAIN; |
936 | |
1158 | |
937 | if (SvTRUE (ERRSV)) |
1159 | if (SvTRUE (ERRSV)) |
938 | { |
1160 | { |
|
|
1161 | SvREFCNT_dec (tag_sv); |
939 | FREETMPS; LEAVE; |
1162 | FREETMPS; LEAVE; |
940 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
1163 | ERR_ERRSV; |
941 | } |
1164 | } |
942 | |
1165 | |
943 | if (count) |
1166 | if (count) |
944 | { |
1167 | { |
|
|
1168 | SvREFCNT_dec (tag_sv); |
945 | SvREFCNT_dec (sv); |
1169 | SvREFCNT_dec (sv); |
946 | sv = SvREFCNT_inc (POPs); |
1170 | sv = SvREFCNT_inc (POPs); |
947 | } |
1171 | } |
948 | else |
1172 | else |
949 | { |
1173 | { |
950 | AV *av = newAV (); |
1174 | AV *av = newAV (); |
951 | av_push (av, newSVuv (tag)); |
1175 | av_push (av, tag_sv); |
952 | av_push (av, sv); |
1176 | av_push (av, sv); |
953 | |
1177 | |
954 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
1178 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
955 | ? cbor_tagged_stash |
1179 | ? cbor_tagged_stash |
956 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
1180 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
… | |
… | |
974 | static SV * |
1198 | static SV * |
975 | decode_sv (dec_t *dec) |
1199 | decode_sv (dec_t *dec) |
976 | { |
1200 | { |
977 | WANT (1); |
1201 | WANT (1); |
978 | |
1202 | |
979 | switch (*dec->cur >> 5) |
1203 | switch (*dec->cur >> MAJOR_SHIFT) |
980 | { |
1204 | { |
981 | case 0: // unsigned int |
1205 | case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
982 | return newSVuv (decode_uint (dec)); |
1206 | case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
983 | case 1: // negative int |
1207 | case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
984 | return newSViv (-1 - (IV)decode_uint (dec)); |
1208 | case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
985 | case 2: // octet string |
1209 | case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
986 | return decode_str (dec, 0); |
1210 | case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
987 | case 3: // utf-8 string |
1211 | case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
988 | return decode_str (dec, 1); |
1212 | |
989 | case 4: // array |
1213 | case MAJOR_MISC >> MAJOR_SHIFT: |
990 | return decode_av (dec); |
|
|
991 | case 5: // map |
|
|
992 | return decode_hv (dec); |
|
|
993 | case 6: // tag |
|
|
994 | return decode_tagged (dec); |
|
|
995 | case 7: // misc |
|
|
996 | switch (*dec->cur++ & 31) |
1214 | switch (*dec->cur++ & MINOR_MASK) |
997 | { |
1215 | { |
998 | case 20: |
1216 | case SIMPLE_FALSE: |
999 | #if CBOR_SLOW |
1217 | #if CBOR_SLOW |
1000 | types_false = get_bool ("Types::Serialiser::false"); |
1218 | types_false = get_bool ("Types::Serialiser::false"); |
1001 | #endif |
1219 | #endif |
1002 | return newSVsv (types_false); |
1220 | return newSVsv (types_false); |
1003 | case 21: |
1221 | case SIMPLE_TRUE: |
1004 | #if CBOR_SLOW |
1222 | #if CBOR_SLOW |
1005 | types_true = get_bool ("Types::Serialiser::true"); |
1223 | types_true = get_bool ("Types::Serialiser::true"); |
1006 | #endif |
1224 | #endif |
1007 | return newSVsv (types_true); |
1225 | return newSVsv (types_true); |
1008 | case 22: |
1226 | case SIMPLE_NULL: |
1009 | return newSVsv (&PL_sv_undef); |
1227 | return newSVsv (&PL_sv_undef); |
1010 | case 23: |
1228 | case SIMPLE_UNDEF: |
1011 | #if CBOR_SLOW |
1229 | #if CBOR_SLOW |
1012 | types_error = get_bool ("Types::Serialiser::error"); |
1230 | types_error = get_bool ("Types::Serialiser::error"); |
1013 | #endif |
1231 | #endif |
1014 | return newSVsv (types_error); |
1232 | return newSVsv (types_error); |
1015 | |
1233 | |
1016 | case 25: |
1234 | case MISC_FLOAT16: |
1017 | { |
1235 | { |
1018 | WANT (2); |
1236 | WANT (2); |
1019 | |
1237 | |
1020 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1238 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1021 | dec->cur += 2; |
1239 | dec->cur += 2; |
1022 | |
1240 | |
1023 | return newSVnv (ecb_binary16_to_float (fp)); |
1241 | return newSVnv (ecb_binary16_to_float (fp)); |
1024 | } |
1242 | } |
1025 | |
1243 | |
1026 | case 26: |
1244 | case MISC_FLOAT32: |
1027 | { |
1245 | { |
1028 | uint32_t fp; |
1246 | uint32_t fp; |
1029 | WANT (4); |
1247 | WANT (4); |
1030 | memcpy (&fp, dec->cur, 4); |
1248 | memcpy (&fp, dec->cur, 4); |
1031 | dec->cur += 4; |
1249 | dec->cur += 4; |
… | |
… | |
1034 | fp = ecb_bswap32 (fp); |
1252 | fp = ecb_bswap32 (fp); |
1035 | |
1253 | |
1036 | return newSVnv (ecb_binary32_to_float (fp)); |
1254 | return newSVnv (ecb_binary32_to_float (fp)); |
1037 | } |
1255 | } |
1038 | |
1256 | |
1039 | case 27: |
1257 | case MISC_FLOAT64: |
1040 | { |
1258 | { |
1041 | uint64_t fp; |
1259 | uint64_t fp; |
1042 | WANT (8); |
1260 | WANT (8); |
1043 | memcpy (&fp, dec->cur, 8); |
1261 | memcpy (&fp, dec->cur, 8); |
1044 | dec->cur += 8; |
1262 | dec->cur += 8; |
… | |
… | |
1047 | fp = ecb_bswap64 (fp); |
1265 | fp = ecb_bswap64 (fp); |
1048 | |
1266 | |
1049 | return newSVnv (ecb_binary64_to_double (fp)); |
1267 | return newSVnv (ecb_binary64_to_double (fp)); |
1050 | } |
1268 | } |
1051 | |
1269 | |
1052 | // 0..19 unassigned |
1270 | // 0..19 unassigned simple |
1053 | // 24 reserved + unassigned (reserved values are not encodable) |
1271 | // 24 reserved + unassigned simple (reserved values are not encodable) |
|
|
1272 | // 28-30 unassigned misc |
|
|
1273 | // 31 break code |
1054 | default: |
1274 | default: |
1055 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1275 | ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
1056 | } |
1276 | } |
1057 | |
1277 | |
1058 | break; |
1278 | break; |
1059 | } |
1279 | } |
1060 | |
1280 | |
… | |
… | |
1063 | } |
1283 | } |
1064 | |
1284 | |
1065 | static SV * |
1285 | static SV * |
1066 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1286 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1067 | { |
1287 | { |
1068 | dec_t dec = { }; |
1288 | dec_t dec = { 0 }; |
1069 | SV *sv; |
1289 | SV *sv; |
1070 | STRLEN len; |
1290 | STRLEN len; |
1071 | char *data = SvPVbyte (string, len); |
1291 | char *data = SvPVbyte (string, len); |
1072 | |
1292 | |
1073 | if (len > cbor->max_size && cbor->max_size) |
1293 | if (len > cbor->max_size && cbor->max_size) |
… | |
… | |
1087 | if (dec.cur != dec.end && !dec.err) |
1307 | if (dec.cur != dec.end && !dec.err) |
1088 | dec.err = "garbage after CBOR object"; |
1308 | dec.err = "garbage after CBOR object"; |
1089 | |
1309 | |
1090 | if (dec.err) |
1310 | if (dec.err) |
1091 | { |
1311 | { |
|
|
1312 | if (dec.shareable) |
|
|
1313 | { |
|
|
1314 | // need to break cyclic links, which would all be in shareable |
|
|
1315 | int i; |
|
|
1316 | SV **svp; |
|
|
1317 | |
|
|
1318 | for (i = av_len (dec.shareable) + 1; i--; ) |
|
|
1319 | if ((svp = av_fetch (dec.shareable, i, 0))) |
|
|
1320 | sv_setsv (*svp, &PL_sv_undef); |
|
|
1321 | } |
|
|
1322 | |
1092 | SvREFCNT_dec (sv); |
1323 | SvREFCNT_dec (sv); |
|
|
1324 | |
|
|
1325 | if (dec.err_sv) |
|
|
1326 | sv_2mortal (dec.err_sv); |
|
|
1327 | |
1093 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1328 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1094 | } |
1329 | } |
1095 | |
1330 | |
1096 | sv = sv_2mortal (sv); |
1331 | sv = sv_2mortal (sv); |
1097 | |
1332 | |
1098 | return sv; |
1333 | return sv; |
1099 | } |
1334 | } |
1100 | |
1335 | |
|
|
1336 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1337 | // incremental parser |
|
|
1338 | |
|
|
1339 | #define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
|
|
1340 | |
|
|
1341 | // returns 0 for notyet, 1 for success or error |
|
|
1342 | static int |
|
|
1343 | incr_parse (CBOR *self, SV *cborstr) |
|
|
1344 | { |
|
|
1345 | STRLEN cur; |
|
|
1346 | SvPV (cborstr, cur); |
|
|
1347 | |
|
|
1348 | while (ecb_expect_true (self->incr_need <= cur)) |
|
|
1349 | { |
|
|
1350 | // table of integer count bytes |
|
|
1351 | static I8 incr_len[MINOR_MASK + 1] = { |
|
|
1352 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1353 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1354 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1355 | 1, 2, 4, 8,-1,-1,-1,-2 |
|
|
1356 | }; |
|
|
1357 | |
|
|
1358 | const U8 *p = SvPVX (cborstr) + self->incr_pos; |
|
|
1359 | U8 m = *p & MINOR_MASK; |
|
|
1360 | IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1361 | I8 ilen = incr_len[m]; |
|
|
1362 | |
|
|
1363 | self->incr_need = self->incr_pos + 1; |
|
|
1364 | |
|
|
1365 | if (ecb_expect_false (ilen < 0)) |
|
|
1366 | { |
|
|
1367 | if (m != MINOR_INDEF) |
|
|
1368 | return 1; // error |
|
|
1369 | |
|
|
1370 | if (*p == (MAJOR_MISC | MINOR_INDEF)) |
|
|
1371 | { |
|
|
1372 | if (count >= 0) |
|
|
1373 | return 1; // error |
|
|
1374 | |
|
|
1375 | count = 1; |
|
|
1376 | } |
|
|
1377 | else |
|
|
1378 | { |
|
|
1379 | av_push (self->incr_count, newSViv (-1)); //TODO: nest |
|
|
1380 | count = -1; |
|
|
1381 | } |
|
|
1382 | } |
|
|
1383 | else |
|
|
1384 | { |
|
|
1385 | self->incr_need += ilen; |
|
|
1386 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1387 | return 0; |
|
|
1388 | |
|
|
1389 | int major = *p >> MAJOR_SHIFT; |
|
|
1390 | |
|
|
1391 | switch (major) |
|
|
1392 | { |
|
|
1393 | case MAJOR_TAG >> MAJOR_SHIFT: |
|
|
1394 | ++count; // tags merely prefix another value |
|
|
1395 | break; |
|
|
1396 | |
|
|
1397 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1398 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1399 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1400 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1401 | { |
|
|
1402 | UV len; |
|
|
1403 | |
|
|
1404 | if (ecb_expect_false (ilen)) |
|
|
1405 | { |
|
|
1406 | len = 0; |
|
|
1407 | |
|
|
1408 | do { |
|
|
1409 | len = (len << 8) | *++p; |
|
|
1410 | } while (--ilen); |
|
|
1411 | } |
|
|
1412 | else |
|
|
1413 | len = m; |
|
|
1414 | |
|
|
1415 | switch (major) |
|
|
1416 | { |
|
|
1417 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1418 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1419 | self->incr_need += len; |
|
|
1420 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1421 | return 0; |
|
|
1422 | |
|
|
1423 | break; |
|
|
1424 | |
|
|
1425 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1426 | len <<= 1; |
|
|
1427 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1428 | if (len) |
|
|
1429 | { |
|
|
1430 | av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
|
|
1431 | count = len + 1; |
|
|
1432 | } |
|
|
1433 | break; |
|
|
1434 | } |
|
|
1435 | } |
|
|
1436 | } |
|
|
1437 | } |
|
|
1438 | |
|
|
1439 | self->incr_pos = self->incr_need; |
|
|
1440 | |
|
|
1441 | if (count > 0) |
|
|
1442 | { |
|
|
1443 | while (!--count) |
|
|
1444 | { |
|
|
1445 | if (!AvFILLp (self->incr_count)) |
|
|
1446 | return 1; // done |
|
|
1447 | |
|
|
1448 | SvREFCNT_dec_NN (av_pop (self->incr_count)); |
|
|
1449 | count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1450 | } |
|
|
1451 | |
|
|
1452 | SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
|
|
1453 | } |
|
|
1454 | } |
|
|
1455 | |
|
|
1456 | return 0; |
|
|
1457 | } |
|
|
1458 | |
|
|
1459 | |
1101 | ///////////////////////////////////////////////////////////////////////////// |
1460 | ///////////////////////////////////////////////////////////////////////////// |
1102 | // XS interface functions |
1461 | // XS interface functions |
1103 | |
1462 | |
1104 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1463 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1105 | |
1464 | |
… | |
… | |
1117 | |
1476 | |
1118 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
1477 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
1119 | |
1478 | |
1120 | sv_cbor = newSVpv ("CBOR", 0); |
1479 | sv_cbor = newSVpv ("CBOR", 0); |
1121 | SvREADONLY_on (sv_cbor); |
1480 | SvREADONLY_on (sv_cbor); |
|
|
1481 | |
|
|
1482 | assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1)); |
1122 | } |
1483 | } |
1123 | |
1484 | |
1124 | PROTOTYPES: DISABLE |
1485 | PROTOTYPES: DISABLE |
1125 | |
1486 | |
1126 | void CLONE (...) |
1487 | void CLONE (...) |
… | |
… | |
1145 | void shrink (CBOR *self, int enable = 1) |
1506 | void shrink (CBOR *self, int enable = 1) |
1146 | ALIAS: |
1507 | ALIAS: |
1147 | shrink = F_SHRINK |
1508 | shrink = F_SHRINK |
1148 | allow_unknown = F_ALLOW_UNKNOWN |
1509 | allow_unknown = F_ALLOW_UNKNOWN |
1149 | allow_sharing = F_ALLOW_SHARING |
1510 | allow_sharing = F_ALLOW_SHARING |
1150 | allow_stringref = F_ALLOW_STRINGREF |
1511 | allow_cycles = F_ALLOW_CYCLES |
|
|
1512 | forbid_objects = F_FORBID_OBJECTS |
|
|
1513 | pack_strings = F_PACK_STRINGS |
|
|
1514 | text_keys = F_TEXT_KEYS |
|
|
1515 | text_strings = F_TEXT_STRINGS |
|
|
1516 | validate_utf8 = F_VALIDATE_UTF8 |
1151 | PPCODE: |
1517 | PPCODE: |
1152 | { |
1518 | { |
1153 | if (enable) |
1519 | if (enable) |
1154 | self->flags |= ix; |
1520 | self->flags |= ix; |
1155 | else |
1521 | else |
… | |
… | |
1161 | void get_shrink (CBOR *self) |
1527 | void get_shrink (CBOR *self) |
1162 | ALIAS: |
1528 | ALIAS: |
1163 | get_shrink = F_SHRINK |
1529 | get_shrink = F_SHRINK |
1164 | get_allow_unknown = F_ALLOW_UNKNOWN |
1530 | get_allow_unknown = F_ALLOW_UNKNOWN |
1165 | get_allow_sharing = F_ALLOW_SHARING |
1531 | get_allow_sharing = F_ALLOW_SHARING |
1166 | get_allow_stringref = F_ALLOW_STRINGREF |
1532 | get_allow_cycles = F_ALLOW_CYCLES |
|
|
1533 | get_forbid_objects = F_FORBID_OBJECTS |
|
|
1534 | get_pack_strings = F_PACK_STRINGS |
|
|
1535 | get_text_keys = F_TEXT_KEYS |
|
|
1536 | get_text_strings = F_TEXT_STRINGS |
|
|
1537 | get_validate_utf8 = F_VALIDATE_UTF8 |
1167 | PPCODE: |
1538 | PPCODE: |
1168 | XPUSHs (boolSV (self->flags & ix)); |
1539 | XPUSHs (boolSV (self->flags & ix)); |
1169 | |
1540 | |
1170 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1541 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1171 | PPCODE: |
1542 | PPCODE: |
… | |
… | |
1220 | EXTEND (SP, 2); |
1591 | EXTEND (SP, 2); |
1221 | PUSHs (sv); |
1592 | PUSHs (sv); |
1222 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1593 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1223 | } |
1594 | } |
1224 | |
1595 | |
|
|
1596 | void incr_parse (CBOR *self, SV *cborstr) |
|
|
1597 | ALIAS: |
|
|
1598 | incr_parse_multiple = 1 |
|
|
1599 | PPCODE: |
|
|
1600 | { |
|
|
1601 | if (SvUTF8 (cborstr)) |
|
|
1602 | sv_utf8_downgrade (cborstr, 0); |
|
|
1603 | |
|
|
1604 | if (!self->incr_count) |
|
|
1605 | { |
|
|
1606 | self->incr_count = newAV (); |
|
|
1607 | self->incr_pos = 0; |
|
|
1608 | self->incr_need = 1; |
|
|
1609 | |
|
|
1610 | av_push (self->incr_count, newSViv (1)); |
|
|
1611 | } |
|
|
1612 | |
|
|
1613 | do |
|
|
1614 | { |
|
|
1615 | if (!incr_parse (self, cborstr)) |
|
|
1616 | { |
|
|
1617 | if (self->incr_need > self->max_size && self->max_size) |
|
|
1618 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
|
|
1619 | (unsigned long)self->incr_need, (unsigned long)self->max_size); |
|
|
1620 | |
|
|
1621 | break; |
|
|
1622 | } |
|
|
1623 | |
|
|
1624 | SV *sv; |
|
|
1625 | char *offset; |
|
|
1626 | |
|
|
1627 | PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
|
|
1628 | XPUSHs (sv); |
|
|
1629 | |
|
|
1630 | sv_chop (cborstr, offset); |
|
|
1631 | |
|
|
1632 | av_clear (self->incr_count); |
|
|
1633 | av_push (self->incr_count, newSViv (1)); |
|
|
1634 | |
|
|
1635 | self->incr_pos = 0; |
|
|
1636 | self->incr_need = self->incr_pos + 1; |
|
|
1637 | } |
|
|
1638 | while (ix); |
|
|
1639 | } |
|
|
1640 | |
|
|
1641 | void incr_reset (CBOR *self) |
|
|
1642 | CODE: |
|
|
1643 | { |
|
|
1644 | SvREFCNT_dec (self->incr_count); |
|
|
1645 | self->incr_count = 0; |
|
|
1646 | } |
|
|
1647 | |
1225 | void DESTROY (CBOR *self) |
1648 | void DESTROY (CBOR *self) |
1226 | PPCODE: |
1649 | PPCODE: |
1227 | cbor_free (self); |
1650 | cbor_free (self); |
1228 | |
1651 | |
1229 | PROTOTYPES: ENABLE |
1652 | PROTOTYPES: ENABLE |
1230 | |
1653 | |
1231 | void encode_cbor (SV *scalar) |
1654 | void encode_cbor (SV *scalar) |
|
|
1655 | ALIAS: |
|
|
1656 | encode_cbor = 0 |
|
|
1657 | encode_cbor_sharing = F_ALLOW_SHARING |
1232 | PPCODE: |
1658 | PPCODE: |
1233 | { |
1659 | { |
1234 | CBOR cbor; |
1660 | CBOR cbor; |
1235 | cbor_init (&cbor); |
1661 | cbor_init (&cbor); |
|
|
1662 | cbor.flags |= ix; |
1236 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1663 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1237 | XPUSHs (scalar); |
1664 | XPUSHs (scalar); |
1238 | } |
1665 | } |
1239 | |
1666 | |
1240 | void decode_cbor (SV *cborstr) |
1667 | void decode_cbor (SV *cborstr) |